Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.086473E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:45:22+0800
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    1 Object 1

    AOE ID 52621
    NORAD ID 52621
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58828
    NORAD ID 58828
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3984 STARLINK-31222
    Time of Closest Approach 2026-10-20T16:37:57+0000
    Collision Probability (Pc) 1.086473E-6
    Conjunction Distance (km) 2.73 km
    Relative Speed (km/s) 8.271 km/s
    Conjunction Risk Parameters R (Radial): 2.662 | I (In-track): 0.512 | C (Cross-track): -0.323
    Collision Risk Index (CRI) 0.36
    X Position (km) 4815.506 4817.286
    Position Y (km) 744.046 744.933
    Position Z (km) 4787.607 4789.476
    Velocity X (km/s) -3.85 1.886
    Velocity Y (km/s) 5.906 6.792
    Velocity Z (km/s) 2.946 -2.945

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3984 STARLINK-31222
    Semimajor Axis (a) 6837.874 km 6840.858 km
    Eccentricity (e) 0.000157 0.000218
    Inclination (i) 53.1574° 53.1545°
    RAAN 326.8716° 240.0039°
    Perigee Argument 95.0595° 77.5298°
    Mean Anomaly (M) 265.0587° 282.5948°
    Apogee 460.812 km 464.213 km
    Perigee 458.662 km 461.229 km
    Orbit Epoch 2026-10-19T12:14:50+0000 2026-10-19T21:21:30+0000

    STARLINK-3984 & STARLINK-31222 Collision Probability (Pc) Trend

    STARLINK-3984 & STARLINK-31222 Collision Probability (Pc) TrendNot Available

    STARLINK-3984 & STARLINK-31222 Miss Distance (Miss Distance) Trend

    STARLINK-3984 & STARLINK-31222 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3984Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31222Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3984Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31222Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3984

    No nearby objects data